Castle



(N0 Model.)

W. E. ARNOLD.

BOILER FOR COOKING GRAIN.

niliilrlillilliiililr lli UNITEDSTATES PAI T OFFICE" 1 l jW l jhLlAldE.aARNOLD,1OE;ROCHESTER, NEW yonmkssienoa ro:wiLMorl a -oAsTLE,oE SAME'PLAOE-V to a a To all whomit may concern: a a 1 1 Be it known that 1, WILLIAM E. ARNOLD, of Rochester, Monroe county, New York, have invented a certain newand useful Improves'imentfiuiBoilers for Cooking Grains and Farinaceousi Food {and I do hereby declarethat the following is a full, clear, and exact dethe accompanying drawings, in whichl l is a Figure 1 jisa central vertical sectionof the 1 apparatus." Fig.2 is a cross-sectionin line w.

"j, Myiinvention relatestohoilers for culinary auddoniestic use, and is animprovement upon the apparatus patented by me July 8, 1879.

1 y The invention consists in the construction a I and arrangemeutof parts hereinafter more fully described and definitely claimed." In theldrawings,;Asho'ws the boiler, and B thejkettle or cooker. Theboiler is open toppe zoflandi i thekettle, which sits therein and contains thejmaterial to be cooked, is closedby a cover, a, and maybe made of any desired form,

hut preferably dish-shaped,as shown. The a upper portion of the boileris also conical, and a 5 aiiJacketspace, b, is left between the two parts, A iitopp a p I y is the supply-reservoirforcontaining waj ter,thejsame being pan-shaped, an'd'located ,ooutsideof the boiler, f 1 y D is a heating-reservoir, consisting of a very a fthin vessel, which rests over the fire and re-1 ceives the directaction of the heat. It receives its supply of waterfrom the supply-reservoir 5 through small holesor passages c c 0, formed in depressions of: the reservoir, which rest iupouand form bearings with the top of fthe heating-reservoir. The heating reservoir Dcojrnmunicates: directly with the bottom of o the boiler by a central tubular passageyF,

1 j which reallyforms a con tinuatiou of the boiler,-

the-water rising in said tubular passage on a fi-leveltwith that inthe supply-reservoir. The

rapidly-heated, aud, risin'g in'the tubular pasv sage, is1converted into steam, which rises in 'the= iacketspace b and surrounds the cooking- 1 receptacle. As fast as'th'e water is evaporated its placejisfsupplied by water from the snppl rscriptionl of the-same, referencebeing had to cool water in the supply-reservoir from coming a in contact with and cooling the water in the h gradually contracts tonothing at the denser.

drips back into the supply-reservoir. 'The con 85 increasing-the heat,

waterlin-the thin heating-reservoir becomes a q] srncrrrcerron forming pm recessiv 257,810, dated May 9,1882, 1 ApplicationfiledFebrunryL1882, mama.) V a c E is a cylindricalcasingqor jacket, which surrounds the water-passage F, leaving an air- 1 space, 9', between them, which communicates V at the bottom with the airqmss'age it between a the. supplyand heating reservoirs. The air 5 entering and passing through these spaces es capes at the top through holes 13 t, thus insur-I l I ing a constant circulation, and keeping the rests over and incloses the body of the boiler and kettle, as shown in Fig. 1. The open lower end comes nearly to the level of the bottom of the boiler, thus forming a jacket-space,

m, opposite theiusidejacket-spacmb, and this open end rests directly above the supply-res- 7o ervoir, so that the water of condensation gathered by the condenser will drip back into the reservoir, and can be used over againand again. The top of the condenser rests upon anopen-sided boss, r, formed on topofthe cover a, by which the condenser is properly supported, and a space isalso left between the cover and the condenser for the steam.

The operationwill be understood. Thesteam.

passing up thejacket-space b surrounds; the

sides of thecooking-vessel as well asthe bottom. Escaping pastthe cover, thefsteam also surrounds the top, being retained by the con- As fast as the water is'condensed it denser, being simply an inverted cover, isread ilyjapplied or removed. The steam which escapes from the boiler into the condenser not ;only surrounds the top, but also the sides of,

thaboiler and kettle, therebyequalizingand "Having thus described my invention, I] claim----' v y r Y t 1. In acookiug-boiler, the combination, with a the boiler A and supply-reservoir O, of the con- 5 denser K, covering the boiler, and having an open bottom which rests over the supply-reservoir, as and for the purpose specified.

2. In a cooking-boiler,'the combination of the supply-reservoir O, the heating-reservoir Ioo 'D, of the central tubular water-passage, F,

- forming the intermediate portion of the boiler,

and the exterior casin g, E,.leaving a flue-space between itself and the water-passage, and provided at its top with holes 13 t, as shown and described, and for the purpose specified.

4. In a cooking-boiler, the combination of the heating-reservoir D, the tube F, and casing E, forminga flue, the boiler A, the kettle B, the cover at, having the projecting boss r,

and the condenser-K, substantially as specified.

5. In a cooking-boiler, the combination, with the supply-reservoir O, of the double-walled flue, consisting of the tube F and easing E, 20

v with holes it at the top of the casin g'andholes or passages c a leading from the supply-reservoir to the heating-reservoir beneath the tube F, as herein shown and described.

In witness whereof I have hereunto signed 25 name in the presence of two subscribing witnes'ses;

WILLIAM E. ARNOLD. 

